Review articles summarize the current state of research on a subject by organizing, synthesizing, and critically evaluating the relevant literature. They tell what is currently known about an area under study and place what is known in context. This allows the researcher to see how their particular study fits into a larger picture. Review articles are NOT original research articles. Instead, they are a summary of many other original research articles. When your instructor tells you to obtain an "original research article" or to use a primary source, do not use an article that says review.
Look at the abstract or full text of the article and consider the following:
- Is it described as a review?
- Is there a search strategy outlined?
- Does the majority of the article focus on previous studies?